package com.example.yuan.mapper;

import com.example.yuan.pojo.Emp;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import org.springframework.web.bind.annotation.PathVariable;

import java.time.LocalDate;
import java.util.List;

@Mapper
public interface EmpMapper {

//    //记录数
//    @Select("select count(*) from emp")
//    public Long cont();
//
//    //分页查询
//    @Select("select * from emp limit #{start},#{pageSize}")
//    public List<Emp> page(Integer start,Integer pageSize);

    //员工信息查询
//    @Select("select * from emp")
    public List<Emp> list(String name, Short gender, LocalDate begin, LocalDate end);

    void delete(List<Integer> ids);

    //新增员工
    @Insert("insert into emp(username, name, gender, image, job, entrydate, dept_id, create_time, update_time) values (#{username},#{name},#{gender},#{image},#{job},#{entrydate},#{deptId},#{createTime},#{updateTime})")
    void insert(Emp emp);

    @Select("select  * from emp where id=#{id}")
    Emp getById(PathVariable id);

    void update(Emp emp);

    @Select("select * from emp where username = #{username} and password = #{password}")
    Emp getbyUsernameAndPassword(Emp emp);

    /**
     * 根据部门id删除该部门下的员工数量
     * @param deptId
     */
    @Delete("delete from emp where dept_id = #{deptId}")
    void deleteByDeptId(Integer deptId);
}
